hey so i got a 1988 c1500 long box and want to start designing a custom chassis for it. I just wanna start in cad, get it all desigined, then think about building it. Can anyone give me resources on how to start, suspension geometry (want a triangulated four link) and anything that could help me. I know this is vague as all hell, but im new to this and want to learn about it.  

http://www.amazon.com/Engineer-Motorbooks-Workshop-Carroll-Smith/dp/0879381868/ref=pd_sim_b_img_1/002-6424369-9242451
Engineering to Win by Caroll-Smith is an excellent source for info on how to properly design a suspension and chassis.

this is a great one too:

http://www.amazon.com/Fasteners-Plumbing-Handbook-Motorbooks-Workshop/dp/0879384069/ref=pd_bxgy_b_img_b